sound/pci/oxygen/oxygen_mixer.c

   1 /*
   2  * C-Media CMI8788 driver - mixer code
   3  *
   4  * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
   5  *
   6  *
   7  *  This driver is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License, version 2.
   9  *
  10  *  This driver is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this driver; if not, write to the Free Software
  17  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  18  */
  19
  20 #include <linux/mutex.h>
  21 #include <sound/ac97_codec.h>
  22 #include <sound/asoundef.h>
  23 #include <sound/control.h>
  24 #include <sound/tlv.h>
  25 #include "oxygen.h"
  26 #include "cm9780.h"
  27
  28 static int dac_volume_info(struct snd_kcontrol *ctl,
  29                            struct snd_ctl_elem_info *info)
  30 {
  31         info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
  32         info->count = 8;
  33         info->value.integer.min = 0;
  34         info->value.integer.max = 0xff;
  35         return 0;
  36 }
  37
  38 static int dac_volume_get(struct snd_kcontrol *ctl,
  39                           struct snd_ctl_elem_value *value)
  40 {
  41         struct oxygen *chip = ctl->private_data;
  42         unsigned int i;
  43
  44         mutex_lock(&chip->mutex);
  45         for (i = 0; i < 8; ++i)
  46                 value->value.integer.value[i] = chip->dac_volume[i];
  47         mutex_unlock(&chip->mutex);
  48         return 0;
  49 }
  50
  51 static int dac_volume_put(struct snd_kcontrol *ctl,
  52                           struct snd_ctl_elem_value *value)
  53 {
  54         struct oxygen *chip = ctl->private_data;
  55         unsigned int i;
  56         int changed;
  57
  58         changed = 0;
  59         mutex_lock(&chip->mutex);
  60         for (i = 0; i < 8; ++i)
  61                 if (value->value.integer.value[i] != chip->dac_volume[i]) {
  62                         chip->dac_volume[i] = value->value.integer.value[i];
  63                         changed = 1;
  64                 }
  65         if (changed)
  66                 chip->model->update_dac_volume(chip);
  67         mutex_unlock(&chip->mutex);
  68         return changed;
  69 }
  70
  71 static int dac_mute_get(struct snd_kcontrol *ctl,
  72                         struct snd_ctl_elem_value *value)
  73 {
  74         struct oxygen *chip = ctl->private_data;
  75
  76         mutex_lock(&chip->mutex);
  77         value->value.integer.value[0] = !chip->dac_mute;
  78         mutex_unlock(&chip->mutex);
  79         return 0;
  80 }
  81
  82 static int dac_mute_put(struct snd_kcontrol *ctl,
  83                           struct snd_ctl_elem_value *value)
  84 {
  85         struct oxygen *chip = ctl->private_data;
  86         int changed;
  87
  88         mutex_lock(&chip->mutex);
  89         changed = !value->value.integer.value[0] != chip->dac_mute;
  90         if (changed) {
  91                 chip->dac_mute = !value->value.integer.value[0];
  92                 chip->model->update_dac_mute(chip);
  93         }
  94         mutex_unlock(&chip->mutex);
  95         return changed;
  96 }
  97
  98 static int upmix_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
  99 {
 100         static const char *const names[3] = {
 101                 "Front", "Front+Surround", "Front+Surround+Back"
 102         };
 103         info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 104         info->count = 1;
 105         info->value.enumerated.items = 3;
 106         if (info->value.enumerated.item > 2)
 107                 info->value.enumerated.item = 2;
 108         strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
 109         return 0;
 110 }
 111
 112 static int upmix_get(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
 113 {
 114         struct oxygen *chip = ctl->private_data;
 115
 116         mutex_lock(&chip->mutex);
 117         value->value.enumerated.item[0] = chip->dac_routing;
 118         mutex_unlock(&chip->mutex);
 119         return 0;
 120 }
 121
 122 void oxygen_update_dac_routing(struct oxygen *chip)
 123 {
 124         /* DAC 0: front, DAC 1: surround, DAC 2: center/LFE, DAC 3: back */
 125         static const unsigned int reg_values[3] = {
 126                 /* stereo -> front */
 127                 (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
 128                 (1 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
 129                 (2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
 130                 (3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT),
 131                 /* stereo -> front+surround */
 132                 (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
 133                 (0 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
 134                 (2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
 135                 (3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT),
 136                 /* stereo -> front+surround+back */
 137                 (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
 138                 (0 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
 139                 (2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
 140                 (0 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT),
 141         };
 142         u8 channels;
 143         unsigned int reg_value;
 144
 145         channels = oxygen_read8(chip, OXYGEN_PLAY_CHANNELS) &
 146                 OXYGEN_PLAY_CHANNELS_MASK;
 147         if (channels == OXYGEN_PLAY_CHANNELS_2)
 148                 reg_value = reg_values[chip->dac_routing];
 149         else if (channels == OXYGEN_PLAY_CHANNELS_8)
 150                 /* in 7.1 mode, "rear" channels go to the "back" jack */
 151                 reg_value = (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
 152                             (3 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
 153                             (2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
 154                             (1 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT);
 155         else
 156                 reg_value = (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
 157                             (1 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
 158                             (2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
 159                             (3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT);
 160         oxygen_write16_masked(chip, OXYGEN_PLAY_ROUTING, reg_value,
 161                               OXYGEN_PLAY_DAC0_SOURCE_MASK |
 162                               OXYGEN_PLAY_DAC1_SOURCE_MASK |
 163                               OXYGEN_PLAY_DAC2_SOURCE_MASK |
 164                               OXYGEN_PLAY_DAC3_SOURCE_MASK);
 165 }
 166
 167 static int upmix_put(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
 168 {
 169         struct oxygen *chip = ctl->private_data;
 170         int changed;
 171
 172         mutex_lock(&chip->mutex);
 173         changed = value->value.enumerated.item[0] != chip->dac_routing;
 174         if (changed) {
 175                 chip->dac_routing = min(value->value.enumerated.item[0], 2u);
 176                 spin_lock_irq(&chip->reg_lock);
 177                 oxygen_update_dac_routing(chip);
 178                 spin_unlock_irq(&chip->reg_lock);
 179         }
 180         mutex_unlock(&chip->mutex);
 181         return changed;
 182 }
 183
 184 static int spdif_switch_get(struct snd_kcontrol *ctl,
 185                             struct snd_ctl_elem_value *value)
 186 {
 187         struct oxygen *chip = ctl->private_data;
 188
 189         mutex_lock(&chip->mutex);
 190         value->value.integer.value[0] = chip->spdif_playback_enable;
 191         mutex_unlock(&chip->mutex);
 192         return 0;
 193 }
 194
 195 static unsigned int oxygen_spdif_rate(unsigned int oxygen_rate)
 196 {
 197         switch (oxygen_rate) {
 198         case OXYGEN_RATE_32000:
 199                 return IEC958_AES3_CON_FS_32000 << OXYGEN_SPDIF_CS_RATE_SHIFT;
 200         case OXYGEN_RATE_44100:
 201                 return IEC958_AES3_CON_FS_44100 << OXYGEN_SPDIF_CS_RATE_SHIFT;
 202         default: /* OXYGEN_RATE_48000 */
 203                 return IEC958_AES3_CON_FS_48000 << OXYGEN_SPDIF_CS_RATE_SHIFT;
 204         case OXYGEN_RATE_64000:
 205                 return 0xb << OXYGEN_SPDIF_CS_RATE_SHIFT;
 206         case OXYGEN_RATE_88200:
 207                 return 0x8 << OXYGEN_SPDIF_CS_RATE_SHIFT;
 208         case OXYGEN_RATE_96000:
 209                 return 0xa << OXYGEN_SPDIF_CS_RATE_SHIFT;
 210         case OXYGEN_RATE_176400:
 211                 return 0xc << OXYGEN_SPDIF_CS_RATE_SHIFT;
 212         case OXYGEN_RATE_192000:
 213                 return 0xe << OXYGEN_SPDIF_CS_RATE_SHIFT;
 214         }
 215 }
 216
 217 void oxygen_update_spdif_source(struct oxygen *chip)
 218 {
 219         u32 old_control, new_control;
 220         u16 old_routing, new_routing;
 221         unsigned int oxygen_rate;
 222
 223         old_control = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL);
 224         old_routing = oxygen_read16(chip, OXYGEN_PLAY_ROUTING);
 225         if (chip->pcm_active & (1 << PCM_SPDIF)) {
 226                 new_control = old_control | OXYGEN_SPDIF_OUT_ENABLE;
 227                 new_routing = (old_routing & ~OXYGEN_PLAY_SPDIF_MASK)
 228                         | OXYGEN_PLAY_SPDIF_SPDIF;
 229                 oxygen_rate = (old_control >> OXYGEN_SPDIF_OUT_RATE_SHIFT)
 230                         & OXYGEN_I2S_RATE_MASK;
 231                 /* S/PDIF rate was already set by the caller */
 232         } else if ((chip->pcm_active & (1 << PCM_MULTICH)) &&
 233                    chip->spdif_playback_enable) {
 234                 new_routing = (old_routing & ~OXYGEN_PLAY_SPDIF_MASK)
 235                         | OXYGEN_PLAY_SPDIF_MULTICH_01;
 236                 oxygen_rate = oxygen_read16(chip, OXYGEN_I2S_MULTICH_FORMAT)
 237                         & OXYGEN_I2S_RATE_MASK;
 238                 new_control = (old_control & ~OXYGEN_SPDIF_OUT_RATE_MASK) |
 239                         (oxygen_rate << OXYGEN_SPDIF_OUT_RATE_SHIFT) |
 240                         OXYGEN_SPDIF_OUT_ENABLE;
 241         } else {
 242                 new_control = old_control & ~OXYGEN_SPDIF_OUT_ENABLE;
 243                 new_routing = old_routing;
 244                 oxygen_rate = OXYGEN_RATE_44100;
 245         }
 246         if (old_routing != new_routing) {
 247                 oxygen_write32(chip, OXYGEN_SPDIF_CONTROL,
 248                                new_control & ~OXYGEN_SPDIF_OUT_ENABLE);
 249                 oxygen_write16(chip, OXYGEN_PLAY_ROUTING, new_routing);
 250         }
 251         if (new_control & OXYGEN_SPDIF_OUT_ENABLE)
 252                 oxygen_write32(chip, OXYGEN_SPDIF_OUTPUT_BITS,
 253                                oxygen_spdif_rate(oxygen_rate) |
 254                                ((chip->pcm_active & (1 << PCM_SPDIF)) ?
 255                                 chip->spdif_pcm_bits : chip->spdif_bits));
 256         oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, new_control);
 257 }
 258
 259 static int spdif_switch_put(struct snd_kcontrol *ctl,
 260                             struct snd_ctl_elem_value *value)
 261 {
 262         struct oxygen *chip = ctl->private_data;
 263         int changed;
 264
 265         mutex_lock(&chip->mutex);
 266         changed = value->value.integer.value[0] != chip->spdif_playback_enable;
 267         if (changed) {
 268                 chip->spdif_playback_enable = !!value->value.integer.value[0];
 269                 spin_lock_irq(&chip->reg_lock);
 270                 oxygen_update_spdif_source(chip);
 271                 spin_unlock_irq(&chip->reg_lock);
 272         }
 273         mutex_unlock(&chip->mutex);
 274         return changed;
 275 }
 276
 277 static int spdif_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
 278 {
 279         info->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 280         info->count = 1;
 281         return 0;
 282 }
 283
 284 static void oxygen_to_iec958(u32 bits, struct snd_ctl_elem_value *value)
 285 {
 286         value->value.iec958.status[0] =
 287                 bits & (OXYGEN_SPDIF_NONAUDIO | OXYGEN_SPDIF_C |
 288                         OXYGEN_SPDIF_PREEMPHASIS);
 289         value->value.iec958.status[1] = /* category and original */
 290                 bits >> OXYGEN_SPDIF_CATEGORY_SHIFT;
 291 }
 292
 293 static u32 iec958_to_oxygen(struct snd_ctl_elem_value *value)
 294 {
 295         u32 bits;
 296
 297         bits = value->value.iec958.status[0] &
 298                 (OXYGEN_SPDIF_NONAUDIO | OXYGEN_SPDIF_C |
 299                  OXYGEN_SPDIF_PREEMPHASIS);
 300         bits |= value->value.iec958.status[1] << OXYGEN_SPDIF_CATEGORY_SHIFT;
 301         if (bits & OXYGEN_SPDIF_NONAUDIO)
 302                 bits |= OXYGEN_SPDIF_V;
 303         return bits;
 304 }
 305
 306 static inline void write_spdif_bits(struct oxygen *chip, u32 bits)
 307 {
 308         oxygen_write32_masked(chip, OXYGEN_SPDIF_OUTPUT_BITS, bits,
 309                               OXYGEN_SPDIF_NONAUDIO |
 310                               OXYGEN_SPDIF_C |
 311                               OXYGEN_SPDIF_PREEMPHASIS |
 312                               OXYGEN_SPDIF_CATEGORY_MASK |
 313                               OXYGEN_SPDIF_ORIGINAL |
 314                               OXYGEN_SPDIF_V);
 315 }
 316
 317 static int spdif_default_get(struct snd_kcontrol *ctl,
 318                              struct snd_ctl_elem_value *value)
 319 {
 320         struct oxygen *chip = ctl->private_data;
 321
 322         mutex_lock(&chip->mutex);
 323         oxygen_to_iec958(chip->spdif_bits, value);
 324         mutex_unlock(&chip->mutex);
 325         return 0;
 326 }
 327
 328 static int spdif_default_put(struct snd_kcontrol *ctl,
 329                              struct snd_ctl_elem_value *value)
 330 {
 331         struct oxygen *chip = ctl->private_data;
 332         u32 new_bits;
 333         int changed;
 334
 335         new_bits = iec958_to_oxygen(value);
 336         mutex_lock(&chip->mutex);
 337         changed = new_bits != chip->spdif_bits;
 338         if (changed) {
 339                 chip->spdif_bits = new_bits;
 340                 if (!(chip->pcm_active & (1 << PCM_SPDIF)))
 341                         write_spdif_bits(chip, new_bits);
 342         }
 343         mutex_unlock(&chip->mutex);
 344         return changed;
 345 }
 346
 347 static int spdif_mask_get(struct snd_kcontrol *ctl,
 348                           struct snd_ctl_elem_value *value)
 349 {
 350         value->value.iec958.status[0] = IEC958_AES0_NONAUDIO |
 351                 IEC958_AES0_CON_NOT_COPYRIGHT | IEC958_AES0_CON_EMPHASIS;
 352         value->value.iec958.status[1] =
 353                 IEC958_AES1_CON_CATEGORY | IEC958_AES1_CON_ORIGINAL;
 354         return 0;
 355 }
 356
 357 static int spdif_pcm_get(struct snd_kcontrol *ctl,
 358                          struct snd_ctl_elem_value *value)
 359 {
 360         struct oxygen *chip = ctl->private_data;
 361
 362         mutex_lock(&chip->mutex);
 363         oxygen_to_iec958(chip->spdif_pcm_bits, value);
 364         mutex_unlock(&chip->mutex);
 365         return 0;
 366 }
 367
 368 static int spdif_pcm_put(struct snd_kcontrol *ctl,
 369                          struct snd_ctl_elem_value *value)
 370 {
 371         struct oxygen *chip = ctl->private_data;
 372         u32 new_bits;
 373         int changed;
 374
 375         new_bits = iec958_to_oxygen(value);
 376         mutex_lock(&chip->mutex);
 377         changed = new_bits != chip->spdif_pcm_bits;
 378         if (changed) {
 379                 chip->spdif_pcm_bits = new_bits;
 380                 if (chip->pcm_active & (1 << PCM_SPDIF))
 381                         write_spdif_bits(chip, new_bits);
 382         }
 383         mutex_unlock(&chip->mutex);
 384         return changed;
 385 }
 386
 387 static int spdif_input_mask_get(struct snd_kcontrol *ctl,
 388                                 struct snd_ctl_elem_value *value)
 389 {
 390         value->value.iec958.status[0] = 0xff;
 391         value->value.iec958.status[1] = 0xff;
 392         value->value.iec958.status[2] = 0xff;
 393         value->value.iec958.status[3] = 0xff;
 394         return 0;
 395 }
 396
 397 static int spdif_input_default_get(struct snd_kcontrol *ctl,
 398                                    struct snd_ctl_elem_value *value)
 399 {
 400         struct oxygen *chip = ctl->private_data;
 401         u32 bits;
 402
 403         bits = oxygen_read32(chip, OXYGEN_SPDIF_INPUT_BITS);
 404         value->value.iec958.status[0] = bits;
 405         value->value.iec958.status[1] = bits >> 8;
 406         value->value.iec958.status[2] = bits >> 16;
 407         value->value.iec958.status[3] = bits >> 24;
 408         return 0;
 409 }
 410
 411 static int spdif_loopback_get(struct snd_kcontrol *ctl,
 412                               struct snd_ctl_elem_value *value)
 413 {
 414         struct oxygen *chip = ctl->private_data;
 415
 416         value->value.integer.value[0] =
 417                 !!(oxygen_read32(chip, OXYGEN_SPDIF_CONTROL)
 418                    & OXYGEN_SPDIF_LOOPBACK);
 419         return 0;
 420 }
 421
 422 static int spdif_loopback_put(struct snd_kcontrol *ctl,
 423                               struct snd_ctl_elem_value *value)
 424 {
 425         struct oxygen *chip = ctl->private_data;
 426         u32 oldreg, newreg;
 427         int changed;
 428
 429         spin_lock_irq(&chip->reg_lock);
 430         oldreg = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL);
 431         if (value->value.integer.value[0])
 432                 newreg = oldreg | OXYGEN_SPDIF_LOOPBACK;
 433         else
 434                 newreg = oldreg & ~OXYGEN_SPDIF_LOOPBACK;
 435         changed = newreg != oldreg;
 436         if (changed)
 437                 oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, newreg);
 438         spin_unlock_irq(&chip->reg_lock);
 439         return changed;
 440 }
 441
 442 static int ac97_switch_get(struct snd_kcontrol *ctl,
 443                            struct snd_ctl_elem_value *value)
 444 {
 445         struct oxygen *chip = ctl->private_data;
 446         unsigned int index = ctl->private_value & 0xff;
 447         unsigned int bitnr = (ctl->private_value >> 8) & 0xff;
 448         int invert = ctl->private_value & (1 << 16);
 449         u16 reg;
 450
 451         mutex_lock(&chip->mutex);
 452         reg = oxygen_read_ac97(chip, 0, index);
 453         mutex_unlock(&chip->mutex);
 454         if (!(reg & (1 << bitnr)) ^ !invert)
 455                 value->value.integer.value[0] = 1;
 456         else
 457                 value->value.integer.value[0] = 0;
 458         return 0;
 459 }
 460
 461 static void ac97_mute_ctl(struct oxygen *chip, unsigned int control)
 462 {
 463         unsigned int index = chip->controls[control]->private_value & 0xff;
 464         u16 value;
 465
 466         value = oxygen_read_ac97(chip, 0, index);
 467         if (!(value & 0x8000)) {
 468                 oxygen_write_ac97(chip, 0, index, value | 0x8000);
 469                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 470                                &chip->controls[control]->id);
 471         }
 472 }
 473
 474 static int ac97_switch_put(struct snd_kcontrol *ctl,
 475                            struct snd_ctl_elem_value *value)
 476 {
 477         struct oxygen *chip = ctl->private_data;
 478         unsigned int index = ctl->private_value & 0xff;
 479         unsigned int bitnr = (ctl->private_value >> 8) & 0xff;
 480         int invert = ctl->private_value & (1 << 16);
 481         u16 oldreg, newreg;
 482         int change;
 483
 484         mutex_lock(&chip->mutex);
 485         oldreg = oxygen_read_ac97(chip, 0, index);
 486         newreg = oldreg;
 487         if (!value->value.integer.value[0] ^ !invert)
 488                 newreg |= 1 << bitnr;
 489         else
 490                 newreg &= ~(1 << bitnr);
 491         change = newreg != oldreg;
 492         if (change) {
 493                 oxygen_write_ac97(chip, 0, index, newreg);
 494                 if (index == AC97_LINE) {
 495                         oxygen_write_ac97_masked(chip, 0, CM9780_GPIO_STATUS,
 496                                                  newreg & 0x8000 ?
 497                                                  CM9780_GPO0 : 0, CM9780_GPO0);
 498                         if (!(newreg & 0x8000)) {
 499                                 ac97_mute_ctl(chip, CONTROL_MIC_CAPTURE_SWITCH);
 500                                 ac97_mute_ctl(chip, CONTROL_CD_CAPTURE_SWITCH);
 501                                 ac97_mute_ctl(chip, CONTROL_AUX_CAPTURE_SWITCH);
 502                         }
 503                 } else if ((index == AC97_MIC || index == AC97_CD ||
 504                             index == AC97_VIDEO || index == AC97_AUX) &&
 505                            bitnr == 15 && !(newreg & 0x8000)) {
 506                         ac97_mute_ctl(chip, CONTROL_LINE_CAPTURE_SWITCH);
 507                         oxygen_write_ac97_masked(chip, 0, CM9780_GPIO_STATUS,
 508                                                  CM9780_GPO0, CM9780_GPO0);
 509                 }
 510         }
 511         mutex_unlock(&chip->mutex);
 512         return change;
 513 }
 514
 515 static int ac97_volume_info(struct snd_kcontrol *ctl,
 516                             struct snd_ctl_elem_info *info)
 517 {
 518         info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 519         info->count = 2;
 520         info->value.integer.min = 0;
 521         info->value.integer.max = 0x1f;
 522         return 0;
 523 }
 524
 525 static int ac97_volume_get(struct snd_kcontrol *ctl,
 526                            struct snd_ctl_elem_value *value)
 527 {
 528         struct oxygen *chip = ctl->private_data;
 529         unsigned int index = ctl->private_value;
 530         u16 reg;
 531
 532         mutex_lock(&chip->mutex);
 533         reg = oxygen_read_ac97(chip, 0, index);
 534         mutex_unlock(&chip->mutex);
 535         value->value.integer.value[0] = 31 - (reg & 0x1f);
 536         value->value.integer.value[1] = 31 - ((reg >> 8) & 0x1f);
 537         return 0;
 538 }
 539
 540 static int ac97_volume_put(struct snd_kcontrol *ctl,
 541                            struct snd_ctl_elem_value *value)
 542 {
 543         struct oxygen *chip = ctl->private_data;
 544         unsigned int index = ctl->private_value;
 545         u16 oldreg, newreg;
 546         int change;
 547
 548         mutex_lock(&chip->mutex);
 549         oldreg = oxygen_read_ac97(chip, 0, index);
 550         newreg = oldreg;
 551         newreg = (newreg & ~0x1f) |
 552                 (31 - (value->value.integer.value[0] & 0x1f));
 553         newreg = (newreg & ~0x1f00) |
 554                 ((31 - (value->value.integer.value[0] & 0x1f)) << 8);
 555         change = newreg != oldreg;
 556         if (change)
 557                 oxygen_write_ac97(chip, 0, index, newreg);
 558         mutex_unlock(&chip->mutex);
 559         return change;
 560 }
 561
 562 #define AC97_SWITCH(xname, index, bitnr, invert) { \
 563                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 564                 .name = xname, \
 565                 .info = snd_ctl_boolean_mono_info, \
 566                 .get = ac97_switch_get, \
 567                 .put = ac97_switch_put, \
 568                 .private_value = ((invert) << 16) | ((bitnr) << 8) | (index), \
 569         }
 570 #define AC97_VOLUME(xname, index) { \
 571                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 572                 .name = xname, \
 573                 .info = ac97_volume_info, \
 574                 .get = ac97_volume_get, \
 575                 .put = ac97_volume_put, \
 576                 .tlv = { .p = ac97_db_scale, }, \
 577                 .private_value = (index), \
 578         }
 579
 580 static DECLARE_TLV_DB_SCALE(ac97_db_scale, -3450, 150, 0);
 581
 582 static const struct snd_kcontrol_new controls[] = {
 583         {
 584                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 585                 .name = "Master Playback Volume",
 586                 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 587                 .info = dac_volume_info,
 588                 .get = dac_volume_get,
 589                 .put = dac_volume_put,
 590         },
 591         {
 592                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 593                 .name = "Master Playback Switch",
 594                 .info = snd_ctl_boolean_mono_info,
 595                 .get = dac_mute_get,
 596                 .put = dac_mute_put,
 597         },
 598         {
 599                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 600                 .name = "Stereo Upmixing",
 601                 .info = upmix_info,
 602                 .get = upmix_get,
 603                 .put = upmix_put,
 604         },
 605         {
 606                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 607                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
 608                 .info = snd_ctl_boolean_mono_info,
 609                 .get = spdif_switch_get,
 610                 .put = spdif_switch_put,
 611         },
 612         {
 613                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
 614                 .device = 1,
 615                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
 616                 .info = spdif_info,
 617                 .get = spdif_default_get,
 618                 .put = spdif_default_put,
 619         },
 620         {
 621                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
 622                 .device = 1,
 623                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
 624                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 625                 .info = spdif_info,
 626                 .get = spdif_mask_get,
 627         },
 628         {
 629                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
 630                 .device = 1,
 631                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
 632                 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
 633                           SNDRV_CTL_ELEM_ACCESS_INACTIVE,
 634                 .info = spdif_info,
 635                 .get = spdif_pcm_get,
 636                 .put = spdif_pcm_put,
 637         },
 638         {
 639                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
 640                 .device = 1,
 641                 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, MASK),
 642                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 643                 .info = spdif_info,
 644                 .get = spdif_input_mask_get,
 645         },
 646         {
 647                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
 648                 .device = 1,
 649                 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
 650                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 651                 .info = spdif_info,
 652                 .get = spdif_input_default_get,
 653         },
 654         {
 655                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 656                 .name = SNDRV_CTL_NAME_IEC958("Loopback ", NONE, SWITCH),
 657                 .info = snd_ctl_boolean_mono_info,
 658                 .get = spdif_loopback_get,
 659                 .put = spdif_loopback_put,
 660         },
 661 };
 662
 663 static const struct snd_kcontrol_new ac97_controls[] = {
 664         AC97_VOLUME("Mic Capture Volume", AC97_MIC),
 665         AC97_SWITCH("Mic Capture Switch", AC97_MIC, 15, 1),
 666         AC97_SWITCH("Mic Boost (+20dB)", AC97_MIC, 6, 0),
 667         AC97_SWITCH("Line Capture Switch", AC97_LINE, 15, 1),
 668         AC97_VOLUME("CD Capture Volume", AC97_CD),
 669         AC97_SWITCH("CD Capture Switch", AC97_CD, 15, 1),
 670         AC97_VOLUME("Aux Capture Volume", AC97_AUX),
 671         AC97_SWITCH("Aux Capture Switch", AC97_AUX, 15, 1),
 672 };
 673
 674 static void oxygen_any_ctl_free(struct snd_kcontrol *ctl)
 675 {
 676         struct oxygen *chip = ctl->private_data;
 677         unsigned int i;
 678
 679         /* I'm too lazy to write a function for each control :-) */
 680         for (i = 0; i < ARRAY_SIZE(chip->controls); ++i)
 681                 chip->controls[i] = NULL;
 682 }
 683
 684 static int add_controls(struct oxygen *chip,
 685                         const struct snd_kcontrol_new controls[],
 686                         unsigned int count)
 687 {
 688         static const char *const known_ctl_names[CONTROL_COUNT] = {
 689                 [CONTROL_SPDIF_PCM] =
 690                         SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
 691                 [CONTROL_SPDIF_INPUT_BITS] =
 692                         SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
 693                 [CONTROL_MIC_CAPTURE_SWITCH] = "Mic Capture Switch",
 694                 [CONTROL_LINE_CAPTURE_SWITCH] = "Line Capture Switch",
 695                 [CONTROL_CD_CAPTURE_SWITCH] = "CD Capture Switch",
 696                 [CONTROL_AUX_CAPTURE_SWITCH] = "Aux Capture Switch",
 697         };
 698         unsigned int i, j;
 699         struct snd_kcontrol_new template;
 700         struct snd_kcontrol *ctl;
 701         int err;
 702
 703         for (i = 0; i < count; ++i) {
 704                 template = controls[i];
 705                 err = chip->model->control_filter(&template);
 706                 if (err < 0)
 707                         return err;
 708                 ctl = snd_ctl_new1(&template, chip);
 709                 if (!ctl)
 710                         return -ENOMEM;
 711                 err = snd_ctl_add(chip->card, ctl);
 712                 if (err < 0)
 713                         return err;
 714                 for (j = 0; j < CONTROL_COUNT; ++j)
 715                         if (!strcmp(ctl->id.name, known_ctl_names[j])) {
 716                                 chip->controls[j] = ctl;
 717                                 ctl->private_free = oxygen_any_ctl_free;
 718                         }
 719         }
 720         return 0;
 721 }
 722
 723 int oxygen_mixer_init(struct oxygen *chip)
 724 {
 725         int err;
 726
 727         err = add_controls(chip, controls, ARRAY_SIZE(controls));
 728         if (err < 0)
 729                 return err;
 730         if (chip->has_ac97_0) {
 731                 err = add_controls(chip, ac97_controls,
 732                                    ARRAY_SIZE(ac97_controls));
 733                 if (err < 0)
 734                         return err;
 735         }
 736         return chip->model->mixer_init ? chip->model->mixer_init(chip) : 0;
 737 }